2 * Linux Plug and Play Support
3 * Copyright by Adam Belay <ambx1@neo.rr.com>
11 #include <linux/device.h>
12 #include <linux/list.h>
13 #include <linux/errno.h>
14 #include <linux/mod_devicetable.h>
16 #define PNP_MAX_PORT 40
17 #define PNP_MAX_MEM 24
20 #define PNP_NAME_LEN 50
28 struct resource *pnp_get_resource(struct pnp_dev *, unsigned int, unsigned int);
30 static inline int pnp_resource_valid(struct resource *res)
32 if (res && !(res->flags & IORESOURCE_UNSET))
37 static inline resource_size_t pnp_resource_len(struct resource *res)
39 if (res->start == 0 && res->end == 0)
41 return res->end - res->start + 1;
45 static inline resource_size_t pnp_port_start(struct pnp_dev *dev,
48 return pnp_get_resource(dev, IORESOURCE_IO, bar)->start;
51 static inline resource_size_t pnp_port_end(struct pnp_dev *dev,
54 return pnp_get_resource(dev, IORESOURCE_IO, bar)->end;
57 static inline unsigned long pnp_port_flags(struct pnp_dev *dev,
60 return pnp_get_resource(dev, IORESOURCE_IO, bar)->flags;
63 static inline int pnp_port_valid(struct pnp_dev *dev, unsigned int bar)
65 return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IO, bar));
68 static inline resource_size_t pnp_port_len(struct pnp_dev *dev,
71 return pnp_resource_len(pnp_get_resource(dev, IORESOURCE_IO, bar));
75 static inline resource_size_t pnp_mem_start(struct pnp_dev *dev,
78 return pnp_get_resource(dev, IORESOURCE_MEM, bar)->start;
81 static inline resource_size_t pnp_mem_end(struct pnp_dev *dev,
84 return pnp_get_resource(dev, IORESOURCE_MEM, bar)->end;
87 static inline unsigned long pnp_mem_flags(struct pnp_dev *dev, unsigned int bar)
89 return pnp_get_resource(dev, IORESOURCE_MEM, bar)->flags;
92 static inline int pnp_mem_valid(struct pnp_dev *dev, unsigned int bar)
94 return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_MEM, bar));
97 static inline resource_size_t pnp_mem_len(struct pnp_dev *dev,
100 return pnp_resource_len(pnp_get_resource(dev, IORESOURCE_MEM, bar));
104 static inline resource_size_t pnp_irq(struct pnp_dev *dev, unsigned int bar)
106 return pnp_get_resource(dev, IORESOURCE_IRQ, bar)->start;
109 static inline unsigned long pnp_irq_flags(struct pnp_dev *dev, unsigned int bar)
111 return pnp_get_resource(dev, IORESOURCE_IRQ, bar)->flags;
114 static inline int pnp_irq_valid(struct pnp_dev *dev, unsigned int bar)
116 return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_IRQ, bar));
120 static inline resource_size_t pnp_dma(struct pnp_dev *dev, unsigned int bar)
122 return pnp_get_resource(dev, IORESOURCE_DMA, bar)->start;
125 static inline unsigned long pnp_dma_flags(struct pnp_dev *dev, unsigned int bar)
127 return pnp_get_resource(dev, IORESOURCE_DMA, bar)->flags;
130 static inline int pnp_dma_valid(struct pnp_dev *dev, unsigned int bar)
132 return pnp_resource_valid(pnp_get_resource(dev, IORESOURCE_DMA, bar));
136 #define PNP_PORT_FLAG_16BITADDR (1<<0)
137 #define PNP_PORT_FLAG_FIXED (1<<1)
140 unsigned short min; /* min base number */
141 unsigned short max; /* max base number */
142 unsigned char align; /* align boundary */
143 unsigned char size; /* size of range */
144 unsigned char flags; /* port flags */
145 unsigned char pad; /* pad */
146 struct pnp_port *next; /* next port */
149 #define PNP_IRQ_NR 256
151 DECLARE_BITMAP(map, PNP_IRQ_NR); /* bitmask for IRQ lines */
152 unsigned char flags; /* IRQ flags */
153 unsigned char pad; /* pad */
154 struct pnp_irq *next; /* next IRQ */
158 unsigned char map; /* bitmask for DMA channels */
159 unsigned char flags; /* DMA flags */
160 struct pnp_dma *next; /* next port */
164 unsigned int min; /* min base number */
165 unsigned int max; /* max base number */
166 unsigned int align; /* align boundary */
167 unsigned int size; /* size of range */
168 unsigned char flags; /* memory flags */
169 unsigned char pad; /* pad */
170 struct pnp_mem *next; /* next memory resource */
173 #define PNP_RES_PRIORITY_PREFERRED 0
174 #define PNP_RES_PRIORITY_ACCEPTABLE 1
175 #define PNP_RES_PRIORITY_FUNCTIONAL 2
176 #define PNP_RES_PRIORITY_INVALID 65535
179 unsigned short priority; /* priority */
180 struct pnp_port *port; /* first port */
181 struct pnp_irq *irq; /* first IRQ */
182 struct pnp_dma *dma; /* first DMA */
183 struct pnp_mem *mem; /* first memory resource */
184 struct pnp_option *next; /* used to chain dependent resources */
187 struct pnp_resource_table {
188 struct resource port_resource[PNP_MAX_PORT];
189 struct resource mem_resource[PNP_MAX_MEM];
190 struct resource dma_resource[PNP_MAX_DMA];
191 struct resource irq_resource[PNP_MAX_IRQ];
199 struct device dev; /* Driver Model device interface */
200 unsigned char number; /* used as an index, must be unique */
201 struct list_head global_list; /* node in global list of cards */
202 struct list_head protocol_list; /* node in protocol's list of cards */
203 struct list_head devices; /* devices attached to the card */
205 struct pnp_protocol *protocol;
206 struct pnp_id *id; /* contains supported EISA IDs */
208 char name[PNP_NAME_LEN]; /* contains a human-readable name */
209 unsigned char pnpver; /* Plug & Play version */
210 unsigned char productver; /* product version */
211 unsigned int serial; /* serial number */
212 unsigned char checksum; /* if zero - checksum passed */
213 struct proc_dir_entry *procdir; /* directory entry in /proc/bus/isapnp */
216 #define global_to_pnp_card(n) list_entry(n, struct pnp_card, global_list)
217 #define protocol_to_pnp_card(n) list_entry(n, struct pnp_card, protocol_list)
218 #define to_pnp_card(n) container_of(n, struct pnp_card, dev)
219 #define pnp_for_each_card(card) \
220 for((card) = global_to_pnp_card(pnp_cards.next); \
221 (card) != global_to_pnp_card(&pnp_cards); \
222 (card) = global_to_pnp_card((card)->global_list.next))
224 struct pnp_card_link {
225 struct pnp_card *card;
226 struct pnp_card_driver *driver;
228 pm_message_t pm_state;
231 static inline void *pnp_get_card_drvdata(struct pnp_card_link *pcard)
233 return pcard->driver_data;
236 static inline void pnp_set_card_drvdata(struct pnp_card_link *pcard, void *data)
238 pcard->driver_data = data;
242 struct device dev; /* Driver Model device interface */
244 unsigned int number; /* used as an index, must be unique */
247 struct list_head global_list; /* node in global list of devices */
248 struct list_head protocol_list; /* node in list of device's protocol */
249 struct list_head card_list; /* node in card's list of devices */
250 struct list_head rdev_list; /* node in cards list of requested devices */
252 struct pnp_protocol *protocol;
253 struct pnp_card *card; /* card the device is attached to, none if NULL */
254 struct pnp_driver *driver;
255 struct pnp_card_link *card_link;
257 struct pnp_id *id; /* supported EISA IDs */
261 struct pnp_option *independent;
262 struct pnp_option *dependent;
263 struct pnp_resource_table res;
265 char name[PNP_NAME_LEN]; /* contains a human-readable name */
266 unsigned short regs; /* ISAPnP: supported registers */
267 int flags; /* used by protocols */
268 struct proc_dir_entry *procent; /* device entry in /proc/bus/isapnp */
272 #define global_to_pnp_dev(n) list_entry(n, struct pnp_dev, global_list)
273 #define card_to_pnp_dev(n) list_entry(n, struct pnp_dev, card_list)
274 #define protocol_to_pnp_dev(n) list_entry(n, struct pnp_dev, protocol_list)
275 #define to_pnp_dev(n) container_of(n, struct pnp_dev, dev)
276 #define pnp_for_each_dev(dev) \
277 for((dev) = global_to_pnp_dev(pnp_global.next); \
278 (dev) != global_to_pnp_dev(&pnp_global); \
279 (dev) = global_to_pnp_dev((dev)->global_list.next))
280 #define card_for_each_dev(card,dev) \
281 for((dev) = card_to_pnp_dev((card)->devices.next); \
282 (dev) != card_to_pnp_dev(&(card)->devices); \
283 (dev) = card_to_pnp_dev((dev)->card_list.next))
284 #define pnp_dev_name(dev) (dev)->name
286 static inline void *pnp_get_drvdata(struct pnp_dev *pdev)
288 return dev_get_drvdata(&pdev->dev);
291 static inline void pnp_set_drvdata(struct pnp_dev *pdev, void *data)
293 dev_set_drvdata(&pdev->dev, data);
298 void (*quirk_function) (struct pnp_dev * dev); /* fixup function */
301 /* config parameters */
302 #define PNP_CONFIG_NORMAL 0x0001
303 #define PNP_CONFIG_FORCE 0x0002 /* disables validity checking */
306 #define PNP_READ 0x0001
307 #define PNP_WRITE 0x0002
308 #define PNP_DISABLE 0x0004
309 #define PNP_CONFIGURABLE 0x0008
310 #define PNP_REMOVABLE 0x0010
312 #define pnp_can_read(dev) (((dev)->protocol->get) && \
313 ((dev)->capabilities & PNP_READ))
314 #define pnp_can_write(dev) (((dev)->protocol->set) && \
315 ((dev)->capabilities & PNP_WRITE))
316 #define pnp_can_disable(dev) (((dev)->protocol->disable) && \
317 ((dev)->capabilities & PNP_DISABLE))
318 #define pnp_can_configure(dev) ((!(dev)->active) && \
319 ((dev)->capabilities & PNP_CONFIGURABLE))
322 extern struct pnp_protocol isapnp_protocol;
323 #define pnp_device_is_isapnp(dev) ((dev)->protocol == (&isapnp_protocol))
325 #define pnp_device_is_isapnp(dev) 0
327 extern struct mutex pnp_res_mutex;
329 #ifdef CONFIG_PNPBIOS
330 extern struct pnp_protocol pnpbios_protocol;
331 #define pnp_device_is_pnpbios(dev) ((dev)->protocol == (&pnpbios_protocol))
333 #define pnp_device_is_pnpbios(dev) 0
337 #define PNP_READY 0x0000
338 #define PNP_ATTACHED 0x0001
339 #define PNP_BUSY 0x0002
340 #define PNP_FAULTY 0x0004
342 /* isapnp specific macros */
344 #define isapnp_card_number(dev) ((dev)->card ? (dev)->card->number : -1)
345 #define isapnp_csn_number(dev) ((dev)->number)
358 const struct pnp_device_id *id_table;
360 int (*probe) (struct pnp_dev *dev, const struct pnp_device_id *dev_id);
361 void (*remove) (struct pnp_dev *dev);
362 int (*suspend) (struct pnp_dev *dev, pm_message_t state);
363 int (*resume) (struct pnp_dev *dev);
364 struct device_driver driver;
367 #define to_pnp_driver(drv) container_of(drv, struct pnp_driver, driver)
369 struct pnp_card_driver {
370 struct list_head global_list;
372 const struct pnp_card_device_id *id_table;
374 int (*probe) (struct pnp_card_link *card,
375 const struct pnp_card_device_id *card_id);
376 void (*remove) (struct pnp_card_link *card);
377 int (*suspend) (struct pnp_card_link *card, pm_message_t state);
378 int (*resume) (struct pnp_card_link *card);
379 struct pnp_driver link;
382 #define to_pnp_card_driver(drv) container_of(drv, struct pnp_card_driver, link)
384 /* pnp driver flags */
385 #define PNP_DRIVER_RES_DO_NOT_CHANGE 0x0001 /* do not change the state of the device */
386 #define PNP_DRIVER_RES_DISABLE 0x0003 /* ensure the device is disabled */
389 * Protocol Management
392 struct pnp_protocol {
393 struct list_head protocol_list;
396 /* resource control functions */
397 int (*get) (struct pnp_dev *dev);
398 int (*set) (struct pnp_dev *dev);
399 int (*disable) (struct pnp_dev *dev);
401 /* protocol specific suspend/resume */
402 int (*suspend) (struct pnp_dev * dev, pm_message_t state);
403 int (*resume) (struct pnp_dev * dev);
405 /* used by pnp layer only (look but don't touch) */
406 unsigned char number; /* protocol number */
407 struct device dev; /* link to driver model */
408 struct list_head cards;
409 struct list_head devices;
412 #define to_pnp_protocol(n) list_entry(n, struct pnp_protocol, protocol_list)
413 #define protocol_for_each_card(protocol,card) \
414 for((card) = protocol_to_pnp_card((protocol)->cards.next); \
415 (card) != protocol_to_pnp_card(&(protocol)->cards); \
416 (card) = protocol_to_pnp_card((card)->protocol_list.next))
417 #define protocol_for_each_dev(protocol,dev) \
418 for((dev) = protocol_to_pnp_dev((protocol)->devices.next); \
419 (dev) != protocol_to_pnp_dev(&(protocol)->devices); \
420 (dev) = protocol_to_pnp_dev((dev)->protocol_list.next))
422 extern struct bus_type pnp_bus_type;
424 #if defined(CONFIG_PNP)
426 /* device management */
427 int pnp_register_protocol(struct pnp_protocol *protocol);
428 void pnp_unregister_protocol(struct pnp_protocol *protocol);
429 int pnp_add_device(struct pnp_dev *dev);
430 int pnp_device_attach(struct pnp_dev *pnp_dev);
431 void pnp_device_detach(struct pnp_dev *pnp_dev);
432 extern struct list_head pnp_global;
433 extern int pnp_platform_devices;
435 /* multidevice card support */
436 int pnp_add_card(struct pnp_card *card);
437 void pnp_remove_card(struct pnp_card *card);
438 int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev);
439 void pnp_remove_card_device(struct pnp_dev *dev);
440 struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink,
441 const char *id, struct pnp_dev *from);
442 void pnp_release_card_device(struct pnp_dev *dev);
443 int pnp_register_card_driver(struct pnp_card_driver *drv);
444 void pnp_unregister_card_driver(struct pnp_card_driver *drv);
445 extern struct list_head pnp_cards;
447 /* resource management */
448 struct pnp_option *pnp_register_independent_option(struct pnp_dev *dev);
449 struct pnp_option *pnp_register_dependent_option(struct pnp_dev *dev,
451 int pnp_register_irq_resource(struct pnp_dev *dev, struct pnp_option *option,
452 struct pnp_irq *data);
453 int pnp_register_dma_resource(struct pnp_dev *dev, struct pnp_option *option,
454 struct pnp_dma *data);
455 int pnp_register_port_resource(struct pnp_dev *dev, struct pnp_option *option,
456 struct pnp_port *data);
457 int pnp_register_mem_resource(struct pnp_dev *dev, struct pnp_option *option,
458 struct pnp_mem *data);
459 void pnp_init_resources(struct pnp_dev *dev);
460 int pnp_auto_config_dev(struct pnp_dev *dev);
461 int pnp_validate_config(struct pnp_dev *dev);
462 int pnp_start_dev(struct pnp_dev *dev);
463 int pnp_stop_dev(struct pnp_dev *dev);
464 int pnp_activate_dev(struct pnp_dev *dev);
465 int pnp_disable_dev(struct pnp_dev *dev);
467 /* protocol helpers */
468 int pnp_is_active(struct pnp_dev *dev);
469 int compare_pnp_id(struct pnp_id *pos, const char *id);
470 int pnp_register_driver(struct pnp_driver *drv);
471 void pnp_unregister_driver(struct pnp_driver *drv);
475 /* device management */
476 static inline int pnp_register_protocol(struct pnp_protocol *protocol) { return -ENODEV; }
477 static inline void pnp_unregister_protocol(struct pnp_protocol *protocol) { }
478 static inline int pnp_init_device(struct pnp_dev *dev) { return -ENODEV; }
479 static inline int pnp_add_device(struct pnp_dev *dev) { return -ENODEV; }
480 static inline int pnp_device_attach(struct pnp_dev *pnp_dev) { return -ENODEV; }
481 static inline void pnp_device_detach(struct pnp_dev *pnp_dev) { }
483 #define pnp_platform_devices 0
485 /* multidevice card support */
486 static inline int pnp_add_card(struct pnp_card *card) { return -ENODEV; }
487 static inline void pnp_remove_card(struct pnp_card *card) { }
488 static inline int pnp_add_card_device(struct pnp_card *card, struct pnp_dev *dev) { return -ENODEV; }
489 static inline void pnp_remove_card_device(struct pnp_dev *dev) { }
490 static inline struct pnp_dev *pnp_request_card_device(struct pnp_card_link *clink, const char *id, struct pnp_dev *from) { return NULL; }
491 static inline void pnp_release_card_device(struct pnp_dev *dev) { }
492 static inline int pnp_register_card_driver(struct pnp_card_driver *drv) { return -ENODEV; }
493 static inline void pnp_unregister_card_driver(struct pnp_card_driver *drv) { }
495 /* resource management */
496 static inline struct pnp_option *pnp_register_independent_option(struct pnp_dev *dev) { return NULL; }
497 static inline struct pnp_option *pnp_register_dependent_option(struct pnp_dev *dev, int priority) { return NULL; }
498 static inline int pnp_register_irq_resource(struct pnp_dev *dev, struct pnp_option *option, struct pnp_irq *data) { return -ENODEV; }
499 static inline int pnp_register_dma_resource(struct pnp_dev *dev, struct pnp_option *option, struct pnp_dma *data) { return -ENODEV; }
500 static inline int pnp_register_port_resource(struct pnp_dev *dev, struct pnp_option *option, struct pnp_port *data) { return -ENODEV; }
501 static inline int pnp_register_mem_resource(struct pnp_dev *dev, struct pnp_option *option, struct pnp_mem *data) { return -ENODEV; }
502 static inline void pnp_init_resources(struct pnp_dev *dev) { }
503 static inline int pnp_auto_config_dev(struct pnp_dev *dev) { return -ENODEV; }
504 static inline int pnp_validate_config(struct pnp_dev *dev) { return -ENODEV; }
505 static inline int pnp_start_dev(struct pnp_dev *dev) { return -ENODEV; }
506 static inline int pnp_stop_dev(struct pnp_dev *dev) { return -ENODEV; }
507 static inline int pnp_activate_dev(struct pnp_dev *dev) { return -ENODEV; }
508 static inline int pnp_disable_dev(struct pnp_dev *dev) { return -ENODEV; }
510 /* protocol helpers */
511 static inline int pnp_is_active(struct pnp_dev *dev) { return 0; }
512 static inline int compare_pnp_id(struct pnp_id *pos, const char *id) { return -ENODEV; }
513 static inline int pnp_register_driver(struct pnp_driver *drv) { return -ENODEV; }
514 static inline void pnp_unregister_driver(struct pnp_driver *drv) { }
516 #endif /* CONFIG_PNP */
518 #define pnp_err(format, arg...) printk(KERN_ERR "pnp: " format "\n" , ## arg)
519 #define pnp_info(format, arg...) printk(KERN_INFO "pnp: " format "\n" , ## arg)
520 #define pnp_warn(format, arg...) printk(KERN_WARNING "pnp: " format "\n" , ## arg)
522 #ifdef CONFIG_PNP_DEBUG
523 #define pnp_dbg(format, arg...) printk(KERN_DEBUG "pnp: " format "\n" , ## arg)
525 #define pnp_dbg(format, arg...) do {} while (0)
528 #endif /* __KERNEL__ */
530 #endif /* _LINUX_PNP_H */